The Man

"It's the Man."

-Lia to Jake after Mya got shot.

Not much is known about him. He shot Lia and Lia thinks he shot Bree and Mya. He presumedly shot Bree which caused her to get saved by Michael and Michael met Zach who killed Bree so he indirectly murdered Bree.

Murders
Bree (Caused, Indirectly ; Announced)

Mick (Shot ; Announced)

Carley (Burnt to death)

Attempted Murder
Lia (Shot/Trapped in room.)

Mya (Announced)

Jake Jones (Tried to burn to death)

Marley (Tried to kidnap)

Claire Jones (Tried to burn to death)

Bailey (Trapped in room)

Possible Identities
In Season 3 Episode 8 Lia said she believes it is Henry. In the mid-season finale it is revealed it was Henry.

Revealed Identity/Death
It is revealed to be Henry (Bailey's brother) and he kidnapped a lot of people in a room filled with gasoline. When Bailey, Lia and Claire escape he tackles Bailey and Lia stabs him in the back of the neck.